Results 71 to 80 of about 887 (159)
SCMA High-Dimensional Codebook Design Based on VBR-GAM
天地一体化信息网络, 2023 At the physical layer, sparse code multiple access (SCMA) technology is used to solve the problem of massive user access.In the current research on SCMA, in addition to the research on SCMA multi-user detection technology, more attention will be paid to ...
Xu DENG, Ke CHU, Lidong ZHU
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A Dimension Distance-Based SCMA Codebook Design
IEEE Access, 2017 For sparse code multiple access (SCMA) with traditional codebooks, the initial information of message passing algorithm (MPA) receiver is easily susceptible to noise and multipath fading, and the convergence reliability of the first detected user in each
Cheng Yan, Guixia Kang, Ningbo Zhang
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Comparison Study between NOMA and SCMA
, 2017 In this paper, the performance and system complexity of the candidate multiple access (MA) techniques for the next generation of cellular systems, namely, non-orthogonal multiple access (NOMA) (in this paper, we consider power domain MA as NOMA) and sparse code multiple access (SCMA), are investigated.
Moltafet, Mohammad. +3 more
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A low complexity detector for downlink SCMA systems
IET Communications, 2017 Sparse code multiple access (SCMA) is a novel non‐orthogonal multiple access scheme for 5G systems, in which the logarithm domain message passing algorithm (Log‐MPA) is applied at the receiver to achieve near‐optimum performance. However, the computational complexity of Log‐MPA detector is still a big challenge for practical implementation, especially ...
Tian, L +4 more
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International Journal of Management StudiesSmart cities have experienced significant improvements in service quality, resident satisfaction, sustainability, and economic development through the application of information and communication technology.
Musab Talha Akpınar, Mehmet Atak
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SCMA codebook design approaches
, 2020 In 4G systems, Orthogonal Frequency-Division Multiple Access (OFDMA) has been used conventionally for multiple access purposes. This technique has low spectral efficiency since it allocates the resources orthogonally to each user. As an alternative to this technique, Non-orthogonal Multiple Access (NOMA) has been proposed for new generation 5G systems ...
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Windowed Joint Detection and Decoding with IR-HARQ for Asynchronous SCMA Systems. [PDF]
Entropy (Basel), 2023 Guan M, Zhu M, Bai B.
europepmc +1 more source
Deep Spread Multiplexing and Study of Training Methods for DNN-Based Encoder and Decoder. [PDF]
Sensors (Basel), 2023 Kim M, Lee W.
europepmc +1 more source
Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]
Sensors (Basel), 2023 Al-Dulaimi OMK +3 more
europepmc +1 more source
Annual Sickle Cell & Thalassaemia Conference (ASCAT) ‐ October 2023
HemaSphere, Volume 8, Issue S3, December 2024.
wiley +1 more source